Imho:

Bad Romance's,

Best rough female Performane is from Halestorm,

But sexiest is from Markize,

Best male Rock Performance is from FutureIdiots,

But the best Metal version is from The Demonstration,

But most chill out is from Pitt Broken.

Anyway, all of those wouldnt exist,

but are way better, than LadyGaga' original.